School Choice Showdown

Updated June 6, 2005 12:01 a.m. ET

The school choice movement enters middle age this year, a half-century after economist Milton Friedman came up with the idea of vouchers to improve schools and empower parents. Most school-choice programs, however, are still in their infancy and fighting to survive.

So it's worth noting that this month marks a legal showdown for the nation's only statewide school-voucher program. The Florida Supreme Court will hear oral argument...